<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Title</title>
  <link rel="stylesheet" href="style.css">
</head>
<body>
<div id="app">
  <div v-if="books.length">
    <table>
      <thead>
        <tr>
          <th></th>
          <th>书籍名称</th>
          <th>出版日期</th>
          <th>价格</th>
          <th>购买数量</th>
          <th>操作</th>
        </tr>
      </thead>
      <tbody>
        <tr v-for="(item, index) in books">
          <td>{{index + 1}}</td>
          <td>{{item.name}}</td>
          <td>{{item.date}}</td>
          <td>{{item.price | showPrice}}</td>
          <td>
            <button @click="decrement(index)" v-bind:disabled="item.count <= 1">-</button>
            {{item.count}}
            <button @click="increment(index)">+</button>
          </td>
          <td>
            <button @click="removeHandle(index)">移除</button>
          </td>
        </tr>
      </tbody>
    </table>
    <!--filters的用法  data | filters中的函数 filters后面过时了就不用了-->
    <h2>总价格：{{totalPrice | showPrice}}</h2>
  </div>
  <div v-else>购物车为空</div>
</div>

<script src="../js/vue.js"></script>
<script src="main.js"></script>
</body>
</html>
